Intellectuals and Society

I have included this book that is written by Thomas Sowell.  He is most respected in our society and has recently written a book about intellectuals and society.
Intellectuals' downplaying of objective reality and objective criteria, says Sowell, extends beyond social, scientific, or economic phenomena into art, music, and philosophy. Above all, he reveals how intellectuals exalt themselves by running America down and turning Americans against each other.
I curious on what he has to say.